Name: Chicken Soup
Ingredients: broth from boiled chickens; 2 onions, thinly sliced; salt; pepper; 2 eggs, beaten

Why it works: Chicken and onion are a kitchen classic. They rank in the top 8% of all ingredient pairs, and cooks put them together in 17,814 recipes. Both carry gamma-nonanolactone, which smells coconut, sweet. The science ↓

Chicken Soup

Ingredients

Directions

Save the broth after boiling the chickens.
Add the sliced onions to the broth and boil for 20 minutes.
Season with salt and pepper.
Stir in the beaten eggs and serve.

Recipe from a historical cookbook (Internet Archive).

Transcribed from a scanned cookbook and modernised for today's kitchens. Where the book gave no heat or time, or said "a moderate oven", the temperatures and times here may be modern equivalents rather than the book's own figures.

Photo for illustrative purposes only · Contact us to use it

Explore the science

The flavor team

The pairs that carry this dish. Each one is judged two ways: how much their aromas overlap, and how often cooks already put them together.

Chicken + oniontop 8% of all pairs

Smell alikemoderate

Cooked together17,814 recipes

Shared aroma: gamma-nonanolactone (coconut, sweet).
Onion + peppertop 11% of all pairs

Smell alikemoderate

Cooked together68,474 recipes

Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
Chicken + peppertop 16% of all pairs

Smell alikemoderate

Cooked together19,958 recipes

Shared aroma: piperonal (bitter, coconut).
Chicken + eggtop 30% of all pairs

Smell alikemoderate

Cooked together8,991 recipes

Shared aroma: (e,e)-2,4-decadienal (fatty, deep fried).
Pepper + eggtop 33% of all pairs

Smell alikelow

Cooked together50,580 recipes

Shared aroma: 2-nonenal (fatty, green).

Pepper and egg barely smell alike, yet cooks put them together in 50,580 recipes: they work on texture and structure more than aroma.

Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs

What each ingredient does

Onions: Soften during simmering and add sweetness and savory flavor to the broth.
Eggs: Set when stirred into the hot broth, adding body and richness to the soup.